Separator for secondary storage batteries.



A. P. MADDBN. y SBPARATOR FOR SECONDARY STORAGE BATTERIES.

APJLIUATION FILED MAR. 7. 190s.

Patented Feb. 21, 1911.

4 To all 'whom it 'may concern:

` trolyte and will at the same time be practr cally impervious call theseparator shown in Fig. l, and two in ications thereof, and Fig. 5 1s aper 'spective view showing a separator., embodyslits are shown as `solidbars 4, between.. them.

. ceedingly finely dvided.` l

'l to a pair. of

4 The-Sep eniployedr'for 'that lpurpose and of hard b UNTTED sTATEsPATENT onirica."v

ALBERT F. MIDDEN, OF NEWARK, NEW JERSEY, ASSIGNOR T0 THE ELECTRICSTORAGE ,BATTERY COMPANY, OE IBILADELPEIA,

JERSEY.

Specification of Letters Patent,

PENNSYLVANIA, A CORPORATION 0]?` NEVVl Patented Feb. 21, 1911.

' l.Application Bled Harel-l 7, 1908. Serial No. 419,823.

Be it known that I, A Lnnnr F. Mannen, a citizen of the United States,residingat i Newark, in the county of Essex and State l: of New Jersey,have invented a certain new and Improved Separator for Secondary lStorage Batteries, of which the following is i a specification. i

The object of the present invention is to provide a separator 'whichwill permit of the i necessary or requisite Vpassaggfc of the elec# 5 tothe passage of material which maybecom detached or washed free from theface of the plate, and which isex- The separator is characterized bybeing detached or complete in itself and by a vast number of minuteslits, meaning thereby openings formed in it without theremoval of anyat .its material and it will be moreV fully described and finallyclaimed.

In the accompan ing drawings, Figure 1, is a' front View o aseparatorembodying features of the .intention .but drawn to an enlarged scale.Figs. 2, 3, and 4,- are crosssectional rien-s lllustrating diagrannnativing features of 'the invention in application plates. r win s 1,- istheseparator and itl 1.rast1 number. 0f slits '2- a'tor consists of"material usually which ber4 isj a' good illustration. TheV ar-rangedinrows 3, with The slits are Iliade Without removing 'material from thesheet whiclrconstitutes the separator., The sheet is exccedinglytliinand may bereutpared with a sheet of ordinary paper and the 4slits arethe same as cuts which would be inade with a knife; thatis t0 say, noma-y terial is removed in their making. Between the slits, lthe"material of the separator may be inclined in the same direction asshown in Fig. 2, or in different directions as shown in VFiglflf, or thematerial between the slits-may y .tipl-icity of slits cut ,signed` myname.

f lVitnesses:

be staggered. as shown in Fig. 3. Of course the separator. having,r thedescribed character of slits therein may be used in a variety of ways,but for the sake of description one way is shown in Fig. 5. In thatfigure, 5, is a Vpositive pole plate and G, a negative pole plate. 7, isa separator ,as of'wood, flat or plain on the face next the negativepole plate and vertically tace bctivccn which and the positive poleplate, is interposed the' separator I1. The blank spaces ll, of theseparator may be arranged opposite the faces or ribs 8 on the parts 7.Then this is donel the blank spaces f1, serve to keep the wood4 out ofcontact with the positive pole plate, which is desirahle, because thechemical action at the ositive pole plate is such that the wood, if incontactwith it would be injured ci1 rotted. Since the slits are of thecharacter described',

that'is, formed without the removal ofany Iof the material of theseparator, it follows that they are' admirably' adapted to retaingrooved on the opposite the fine loose material, while at the sainetime-permitting the passage of theelectro lyfte.` and if .the materialbetn'rcn the slits he iliclined or. arranged in the inanncr shown in=Figs. and l. the slits are made somewhat more open trolyte but stilloperate tro permanently retain any aose material.

That I claim is:

'1. A separator for secondary' or storage batteries consisting of 'anindepem-lent sheet havinga multiplicity of .parallel closely spaccdslitscnt through it with the port-ions ofi-the sheets between the successiveslits offset, snbstantiallyas described. I

2. A separator for secondaryorstor'age batteries consisting of a sheethaving a multhrough it ii'itlithe matcrial. between the slits inclined,substani 'tially described.

I n testimony whereof I have hereunto ALnnRij r. Mannes.

. l 'ALBERT Tarma', Bacci: Fono.

for the passage of the elec-

